I am thinking of using Tenda MW12 as they support 802.11s. Is it possible to connect my OpenWrt Router and APs to the mesh network to increase the number of nodes?

Is the distance the different standards (a,b,n,ac) actually a question that appears in the test?

I have many different resources with different answers for the range the different networks use.

For example, the 802.11a distance is 25, 25-50, 25-75, 100 feet. I know and understand why all of these different ranges could be possible. I can't possible understand how I would be able to get the correct answer on the exam since there are so many different answers. I also see some study materials just not have the distance.

I'd much rather just cut it from my studies at this point since either a) it is not tested or b) I can't know the answer the test would want.

If you architect it right do you think it would be possible to provide telecoms for a town with a bunch of old routers, perhaps a suitcase of discarded smartphones and some high gain antennas from Dealextreme?

Maybe clusters of b/g on different channels linked together by 5ghz n as a sort of backbone? And knowing more about routing than my limited "BGP exists".

My guess is that your limit would be density---you can only have so many people on the same frequencies in the same place. Latency might be a problem due to the number of hops? Or would it be throughput? Maybe you can compensate by having some of your 5ghz nodes with very directional antennas so you can pack them closer?

It wouldn't need to have Internet access, you could set up asterisk and people could have phone service. Wikipedia, etc. resources could be packed in. Local forums and media sharing... still pretty useful.

Now if this can actually scale to a fair population, wouldn't it be an excellent opportunity for a group of people interested in mesh to help out some of the 2/3 of the world without any 'net access while funding their hobby with tax free donations and government grants?

Apologies if I'm missing something obvious here - I'm relatively new to doing more "advanced" things with OpenWRT, and I'm 99.99% sure I'm missing some really easy key here.

I'm trying to setup a simple 802.11s / batman-adv mesh (mostly for my learnings) in the house I'm staying in. I've got a TP-Link archer a7 and a TP-Link archer c7 v4 sitting on my desk here.

I've attempted to follow the guide located here: https://openwrt.org/docs/guide-user/network/wifi/mesh/batman

I followed the steps up through Step (3) "Bridge VLANs over batman-adv". I did not fully understand what I was supposed to place in my configuration on both the a7 and the c7 according to the guide (this is my own shortcomings, I am aware).

I'm at the point where I'm fairly certain the 2 routers are "seeing" each other over the mesh interface - however - I cannot ping each other.

The a7 has an ip address of 192.168.15.1, and the c7 has an ip address of 192.168.15.11. They are both separately connected to a wireless WAN which seems to work - I can reach the wider internet and I can download packages etc. The WWAN is on the 5GHz radio, and mesh0 is on the 2.4GHz radio.

When I run batctl tcpdump mesh0 from the a7, as best as I can tell I am seeing messages from the c7. Sample logs below:

00:00:42.181766 BAT 50:c7:bf:d0:70:ea: OGM IV via neigh 50:d4:f7:c1:9b:16, seq 206001626, tq 198, ttl 49, v 15, flags [.D.], length 60, tvlv_len 36
	TVLV TTv1: OGM DIFF [.] ttvn=1 vlan_num=2 entry_num=0
		VLAN ID 0, crc 0x7340ecb8
		VLAN ID -1, crc 0x7a13fe93
	TVLV DATv1: enabled
00:00:42.371814 BAT 50:d4:f7:c1:9b:16: OGM IV via neigh 50:d4:f7:c1:9b:16, seq 3638266396, tq 255, ttl 50, v 15, flags [...], length 60, tvlv_len 36
	TVLV TTv1: OGM DIFF [.] ttvn=1 vlan_num=2 entry_num=0
		VLAN ID 0, crc 0x1a642d4c
		VLAN ID -1, crc 0x8433b37d
	TVLV DATv1: enabled

The above log is from the a7 which I believe has the mac address of 50:D4:F7:C1:9B:16 on the mesh interface, and the c7 I believe has the mac address of 50:C7:BF:D0:70:EA on its mesh0 interface.

This is /etc/config/wireless:

config wifi-device 'radio0'
	option type 'mac80211'
	option channel '36'
	option hwmode '11a'
	option path 'pci0000:00/0000:00:00.0'
	option htmode 'VHT80'

config wifi-iface 'default_radio0'
	option device 'radio0'
	option network 'lan'
	option mode 'ap'
	option ft_over_ds '1'
	option ssid 'myssid'
	option encryption 'psk2'
	option ft

I have an iPhone 7 but it works well in my gamin pc). I clicked the wifi button on the case because it just restarts itself. I dont know a thing about computers but here is the computer I still couldn't connect to my Samsung mu6070. (I had this issue before and would be good for a couple years back, fairly decent specs, nothing too flashy.

I'm struggling with the networking side of my server setup. I finally got my transmission/openvpn container working (not 100% port forwarding is configured correctly, and have no clue how to verify that it is in fact using the OpenVPN tunnel and not leaking, but it's at least running?). Now that I've got most of my basic services setup, I've only got 3 big problems in my way before I'm mostly "done" setting things up.

-I think it's a file permission issue, but I can only rename/modify/move/delete files created by a client. Any advice? Also, I'm using ZFS and multiple datasets, but whether I'm moving or copying files between datssets or within a single one, is there a way to have the transfer handled on the server only without it moving data server>client>serverdestination?

-what's the best way to give my services nice URL's instead of ip:port and maybe setup a "home page" to link to them? This is only needed on the local network since I want to access my server from abroad via wireguard. I think nginx might be what I need, but I'm not sure.

-I want to use wireguard to access my server from abroad. I don't necessarily need access to any other devices on my local network if that makes anything easier. I created a duckdns account. My ISP's fiber modem/router has settings for connecting to a DDNS service, and it has some settings for VPN's, but I honestly need to go dive back in and see if that's just for connecting the network to a VPN provider, vs creating a VPS.

I routinely analyze large 802.11 and 802.1X pcaps for hosts and authentication information. Usually this involves large Wireshark filters, which work, but still require huge amounts of tedious analysis of the filtered packets.

Does anyone know of a NetworkMiner type tool for 802.11/802.1X, or a way to carve out the needed information in a graphical way in Wireshark?

I'd like to quickly enumerate hosts, authentication schemes, and sensitive data in LARGE captures (100K+ packets) and present the information in a non-superuser digestible format.

I've been searching, but can't find anything useful.

Most people don't change the SSIDs and MAC addresses of their wireless access points on a regular basis. This is a metadata leak. Is there a way to fix this?

Goal:
Make it harder to map which wireless devices are active and connected to each other.

Design:
It should work without making any changes to the wireless standards or hardware. It should be possible to do this with software.

It should be simple and secure. Preferably better than the current way of doing things from the end user's perspective.

Proposal:
Create a method that will automatically change the SSID in a deterministic way. Something like Bitcoin's BIP32, but for SSIDs. The MAC addresses could be part of this deterministic scheme as well or could be independently updated to a new random address upon each SSID change.

The wireless access point generates a 128 or 256 bit mnemonic seed. No more weak keys. The preshared key and SSIDs are derived from this mnemonic seed.

The end user will only enter a mnemonic seed to connect to a wireless network. There is no need to select a SSID and provide a preshared key. The software will automatically search and connect to the correct SSID based on a deterministic method. This method is to be determined (time?).

The software can list all the valid SSIDs of the past, present and future. This will make management and troubleshooting easier.

The end user interface will have a description box for each network/mnemonic to write something like: "Home network" and "Work". This is because identification based on SSIDs becomes meaningless.

What do you think?

• DOI/PMID/ISBN: 10.1115/1.802977.paper152

• URL

Link to report: https://files.ontario.ca/moh-covid-19-report-en-2021-05-11.pdf

Detailed tables: Google Sheets mode and HTML of Sheets

Throwback Ontario May 11 update: 308 New Cases, 359 Recoveries, 35 Deaths, 13,970 tests (2.20% positive), Current ICUs: 215 (+4 vs. yesterday) (-28 vs. last week)

Testing data: - Source

• Backlog: 24,915 (+12,078), 28,109 tests completed (3,940.3 per 100k in week) --> 40,187 swabbed
• Positive rate (Day/Week/Prev Week): 7.37% / 6.97% / 7.70% - Chart

Episode date data (day/week/prev. week)

• New cases with episode dates in last 3 days: 871 / 1,473 / 2,172 (-694 vs. yesterday week avg)
• New cases - episode dates in last 7 days: 1,407 / 2,095 / 2,397 (-746 vs. yesterday week avg)
• New cases - ALL episode dates: 2,073 / 2,914 / 3,509 (-943 vs. yesterday week avg)

Other data:

• 7 day average: 2,914 (-103 vs. yesterday) (-595 vs. last week)
• Current hospitalizations: 1,782(+150), ICUs: 802(-26), Ventilated: 568(+21), [vs. last week: -385 / -84 / +21] - Chart
• New variant cases (UK/RSA/BRA): +2,283 / +19 / +34 - This data lags quite a bit
• ICU count by Ontario Health Region (vs. last week): Toronto: 133(-22), North: 9(-11), East: 173(-18), Central: 174(-12), West: 254(-14),
• Based on death rates from completed cases over the past month, 17.2 people from today's new cases are expected to die of which 1.0 are less than 50 years old, and 1.6, 2.8, 3.5, 6.4 and 1.8 are in their 50s, 60s, 70s, 80s and 90s respectively. Of t

I know that under marginal link conditions Wi-Fi transmissions automatically select lower speeds and/or fallback to single stream mode to take advantage of antenna diversity to improve range. Do 802.11ac devices fallback to 802.11a rates to eek out the last bit of range or do they just disconnect below 6.5Mbps? If a 80MHz channel width is used do weak signal conditions force a downshift to 40MHz or 20MHz? Since 40VHT/80VHT channels are harder to receive is it better to avoid wide channels even if free channels are abundant?

Summary of Publication:

> Although modern WiFi technology has enough bandwidth to handle multiple audio channels, the current 802.11 standard has numerous defects that prevent widespread adoption for professional live audio. By augmenting the MAC algorithm used in the standard, many of the inherent problems can be addressed. For example, the use of CTS-to-Self was modified in order to distribute in broadcasting mode, the time the network is occupied for each transmission. This reduces the number of backoff counts and dropped packets. An Exclusive Backoff Number Allocation algorithm was also added in order to decrease the probability of collision while maintaining fairness and limiting delay to an acceptable level. A simulation of the modified 802.11 MAC algorithm showed drastically improved performance.

• PDF Download: http://www.aes.org/e-lib/download.cfm/16702.pdf?ID=16702
• Permalink: http://www.aes.org/e-lib/browse.cfm?elib=16702
• Affiliations: Brunel University, Uxbridge London, UK; Ionian University, Corfu, Greece(See document for exact affiliation information.)
• Authors: Chousidis, Christos; Nilavalan, Rajagopal; Floros, Andreas
• Publication Date: 2013-05-20
• Introduced at: JAES Volume 61 Issue 4 pp. 165-173; April 2013

If both your Ethernet and WIFI are not working (getting 80010201 error after around 10 seconds booting up), but your Bluetooth controller can connect to your PS3 wireless, chances are you are having a WIFI interference issue.

Many people misunderstood my situation, assuming that the network function still works. I need to emphasise that by CRASH, I mean I am getting the 80010201 error, and the network function is DEAD.

My PS3 model is Fat CECHL01.

Solution:

Move to a place without 5GHz and IEEE 802.1x WIFI.

My story:

I am living in a dormitory with tons of WIFI hotspots in IEEE 802.1x protocols. And my PS3 cannot detect any WIFI nor my Ethernet cable. Upon search, I found one post facing the same problem.https://www.reddit.com/r/PS3/comments/6bzval/completely_stuck_cannot_get_ps3_to_connect_to/

So I took my PS3 back home and try it again. It still doesn't work. Then I used my iphone to scan the WIFI one by one to see what WIFI signal is leaking into my house, and I found tons of them in 5GHz from my neighbors (It's a highly populated apartment).

In the end, I had to book a love hotel, and packed my PS3 and HDMI screen into my travel luggage and set it up in the hotel. Guess what, it could scan the WIFI and the network function works again!

So I enjoyed my first love hotel experience with my honey (PS3). Will definitely go there again if I need network function!

Greetings all. I'll start of by saying this isn't my Mac. And I don't normally work on apple products. But I do work in tech support. And I have with me an Apple Mac Pro from 2011. Model A1286. Running Macos 10.13.6 High Sierra. (Originally had 10.12.6)

I cannot seem to get the WiFi card to work at all. Bluetooth works fine, but not WiFi.

System report shows no WiFi option under hardware. I have tried the following...

-reset the nvram

-reset the SMC

-deleted the com.apple.airport preferences file and rebooted

-tried the following commands:

networksetup -setairportpower airport on" (this gets me the above error) networksetup -listallhardwareports (Ethernet, FireWire Bluetooth and thunderbolt show up. But no WiFi)

-rebooted into both Lion and High Sierra recovery mode and WiFi doesn't show. "No WiFi hardware"

-harware test shows no problems

-the internet recovery mode without an ethernet cable connected shows a blank WiFi drop-down box. Again, not working.

-reinstalled High Sierra

-got another Airport card and replaced it. Same issues. Bluetooth works so the card works. Just no WiFi

At this point I'm lost. The only clue is apparently when the guy bought it, the person he bought it from mentioned "the WiFi has been permanently disabled" Is that a possibility? Could it be disabled at the bios/firmware level? And if so, how would I go about solving that one?

Hope someone can help. As from what I can see I've done all I can. And I'm now lost

Edited for formatting

Hi all, I have a router with 802.11N 2.4ghz and 5ghz bands, and I am wanting to create a separate network that uses 802.11B WPA, as I have some dated hardware that requires this configuration but don't want to throttle my whole network to B. Is it possible to use a Wi-Fi extender to create another network alongside my main one using a different encryption protocol? Could I use the ethernet port on the router to piggyback the extender and set up a separate network or what is the best way to do this?

Hey guys!

I'm currently working on a research project for my University and I need to be able to scan the wireless network using my android phone. I'm currently developing in Android Studios using the Kotlin language and found some great APIs such as the TelephonyManger which allows me to scan the network. HOWEVER, The .requestNetworkScan method requires the android.permission.MODIFY_PHONE_STATE permission which is a permission only granted to system apps :( . I tried looking at the WifiManager class however it's been deprecated in the API level 28.

Are there any other API/method I could use to get access to my phones wireless card without needing all these permissions? I know there are Network Scanners out there that do this, but I can't figure out how they do it without these permissions. Any help/suggestions would be a huge help.

Thanks in advance!!

Does mikrotik and other brands manage devices that don't use 80mhz without interfering with each other? I have handful of IOT based sensors that are currently running in 20mhz. There is also handful of devices that support SU/MU-MIMO. My worry is the IOT devices will cause delays in the traffic with the high bandwidth devices if the AP waits for 20mhz to pass. The current setup is two APs with different channels on other sides of the house but the plan was to use netmetal 5 with triple chain 2.4/5ghz in the center of the house at 70ft wide. Only the high bandwidth devices would use the 5ghz so does the SU-MIMO still use 2.4ghz? If it doesn't I could use the 2.4 for all legacy devices.

i am taking a course on "wireless networks" and in an assignment i have to take a pcap trace of network for 5 min by first enabling monitor mode using aircrack-ng suite and then analyse the network parameters.

i have extracted the list of AP by filtering using beacon frames.
how do i filter all client devices on the air? is using probe request frame filter correct?

also my pcap does not contain radiotap headers. does airodump not include radiotap headers in pcap file? how can i compute signal strength of each client if i don't have radiotap header information? i also have to compute "aggregate network throughput and a plot with time". i have no idea how will i go about finding that.

pretty much the title.

If I were to implement an open(unencrypted) network with a novel authentication method for internet access

OR

A network with a zero length encryption key and "zero length key" as the name of the network

You all know more about the FCC restrictions than I do, so fire away!

or simply open wifi with STRONG access controls?

This is mainly a thought to keep the riff raff out from using it for misdeeds

Link to report: https://files.ontario.ca/moh-covid-19-report-en-2021-05-11.pdf

Detailed tables: Google Sheets mode and HTML of Sheets

Throwback Ontario May 11 update: 308 New Cases, 359 Recoveries, 35 Deaths, 13,970 tests (2.20% positive), Current ICUs: 215 (+4 vs. yesterday) (-28 vs. last week)

Testing data: - Source

• Backlog: 24,915 (+12,078), 28,109 tests completed (3,940.3 per 100k in week) --> 40,187 swabbed
• Positive rate (Day/Week/Prev Week): 7.37% / 6.97% / 7.70% - Chart

Episode date data (day/week/prev. week)

• New cases with episode dates in last 3 days: 871 / 1,473 / 2,172 (-694 vs. yesterday week avg)
• New cases - episode dates in last 7 days: 1,407 / 2,095 / 2,397 (-746 vs. yesterday week avg)
• New cases - ALL episode dates: 2,073 / 2,914 / 3,509 (-943 vs. yesterday week avg)

Other data:

• 7 day average: 2,914 (-103 vs. yesterday) (-595 vs. last week)
• Current hospitalizations: 1,782(+150), ICUs: 802(-26), Ventilated: 568(+21), [vs. last week: -385 / -84 / +21] - Chart
• New variant cases (UK/RSA/BRA): +2,283 / +19 / +34 - This data lags quite a bit
• ICU count by Ontario Health Region (vs. last week): Toronto: 133(-22), North: 9(-11), East: 173(-18), Central: 174(-12), West: 254(-14),
• Based on death rates from completed cases over the past month, 17.2 people from today's new cases are expected to die of which 1.0 are less than 50 years old, and 1.6, 2.8, 3.5, 6.4 and 1.8 are in their 50s, 60s, 70s, 80s and 90s respectively. Of t

Hi all, I have a router with 802.11N 2.4ghz and 5ghz bands, and I am wanting to create a separate network that uses 802.11B WPA, as I have some dated hardware that requires this configuration but don't want to throttle my whole network to B. Is it possible to use a Wi-Fi extender to create another network alongside my main one using a different encryption protocol? Could I use the ethernet port on the router to piggyback the extender and set up a separate network or what is the best way to do this?